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Old 9th of February 2009 (Mon)   #1
Randy McBum.
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Default Canon 100mm macro F2.8 or Sigma 105mm F2.8 macro

Hi all,

I have a very nice mate who lent me the Canon 100mm macro for long term whilst he sold his Camera.
I used this Lens not as often as I should as I payed nothing for such a long rental, he has just brought himself his new camera and wants this lens back (no surprise). I was very pleased with mostly all pictures produced with this lens and got along with it very well.
My question is I'm now looking to buy a macro lens, I'm on a tight budget and I was wondering if the Sigma 105mm macro F2.8 was worth a look as it is around £150 cheaper than the canon. I understand the Canon is a very good lens and you get what you pay for but is the sigma noticbly lower quality or is it worth buying.
(I'm looking for a macro lens which gives 1:1 Magnification if there is any other lens suggestions please post)

Many Thanks
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Old 9th of February 2009 (Mon)   #2
KenjiS
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Default Re: Canon 100mm macro F2.8 or Sigma 105mm F2.8 macro

From what i understand, Optically the Sigma 105mm macro is pretty much even with the Canon, as is the Tamron 90mm macro [Some people say the Tamron is in fact a sharper lens but I say it might be sample variation]

The extra money in the canon is the quicker focusing motor, the Sigma and the Tamron are both a bit slower than the Canon and are NOT equipped with USMs...

Also neither are IF, meaning they extend out a bit when focusing...

But both are GREAT lenses definately worth a look
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Old 9th of February 2009 (Mon)   #3
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Default Re: Canon 100mm macro F2.8 or Sigma 105mm F2.8 macro

The Sigma is pretty well respected here at POTN, so could be worth a look.
Your other option is the EF-S 60/2.8 macro.

Others will be along with more detailed answers soon, I'm sure.

Meanwhile, do check the image archive threads for these lenses. They are in a separate sub-forum and there should be a link at the top of the page.

P.S.

Hmmm - not quite - -->here's<-- the link.
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Old 9th of February 2009 (Mon)   #4
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Default Re: Canon 100mm macro F2.8 or Sigma 105mm F2.8 macro

I've got both the Canon and Sigma versions. Nothing to choose between them IQ'wise for macro stuff with manual focus. The Canon is much quieter if you want to use AF.

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Old 9th of February 2009 (Mon)   #5
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Default I have the Tamron 90mm f/2.8 AF SP Macro

I got a wonderful buy, a few years ago, on a minty used Tamron 90mm f/2.8 AF SP Macro lens which cost me just over $100 (USD) plus a small shipping charge. This lens is fantastic and, despite the fact that it is an older model, provides exceptional image quality that is right up there with my "L" lenses. Tamron has issued a replacement macro lens and has added a "Di" designator to distinguish this newer model.

I would choose either the Canon 100mm f/2.8 Macro or either of the two Tamron 90mm f/2.8 macro lenses over the Sigma because of problems with the reverse engineering of Sigma that can very well leave you with an obsolete lens which cannot be rechipped for newer Canon cameras.

I would NOT select the older Tamron 90mm f/2.5 "Adaptall" lens because that lens doesn't work well on Canon EOS cameras.
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Old 9th of February 2009 (Mon)   #6
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Default Re: Canon 100mm macro F2.8 or Sigma 105mm F2.8 macro

I asked my sales guy at my camera store why they do not carry Sigma lenses and his comment was that they are generally very good but also brought up this "reverse engineering" thing about sometimes not being able to fit on newer cameras when they come out. I'd never heard of that before. Think also about how well a lens will resell if you decide to make some changes down the road. Otherwise, there are a lot of very satisfied Sigma lens users here on this forum and physically they look really well made and quite frankly a little better looking than many of the Canon lenses to me.
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Old 9th of February 2009 (Mon)   #7
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Default Re: Canon 100mm macro F2.8 or Sigma 105mm F2.8 macro

The fact that the Sigma extends when focusing is a deal breaker for me. The Sigma 150 doesn't and is quite interesting, actually. Nevertheless I'm buying the Canon, when I get around to it. I've gotten very fond of ring USM.
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Old 9th of February 2009 (Mon)   #8
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Default Re: Canon 100mm macro F2.8 or Sigma 105mm F2.8 macro

Quote:
Originally Posted by Randy McBum. View Post
(I'm looking for a macro lens which gives 1:1 Magnification if there is any other lens suggestions please post)
If working distance isn't an issue, your best value would be the Sigma 50mm f/2.8 macro. It will do 1:1 (unlike Canon's 50mm) and serves as a nice portrait lens, as well.
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Old 9th of February 2009 (Mon)   #9
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Default Re: Canon 100mm macro F2.8 or Sigma 105mm F2.8 macro

The Sigma 105 is an excellent lens. I have one for sale, if you're interested. (I have the Sigma 150 now which is also stellar). Optically, the 105 is fantastic...every bit as good as the Canon. The AF is slow and loud, though. However, I never found that an issue for macro shooting since 99% of macro shooting is done with manual focus anyway.
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Old 9th of February 2009 (Mon)   #10
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Default Re: Canon 100mm macro F2.8 or Sigma 105mm F2.8 macro

Quote:
Originally Posted by xarqi View Post
The Sigma is pretty well respected here at POTN, so could be worth a look.
Your other option is the EF-S 60/2.8 macro.

Others will be along with more detailed answers soon, I'm sure.

Meanwhile, do check the image archive threads for these lenses. They are in a separate sub-forum and there should be a link at the top of the page.

P.S.

Hmmm - not quite - -->here's<-- the link.
The EF-S 60 is a superb lens, but i found the working distance way too short and had issues getting my tripod positioned right to get the subject the way i wanted most of the time
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Old 10th of February 2009 (Tue)   #11
Randy McBum.
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Default Re: Canon 100mm macro F2.8 or Sigma 105mm F2.8 macro

Quote:
Originally Posted by xarqi View Post
The Sigma is pretty well respected here at POTN, so could be worth a look.
Your other option is the EF-S 60/2.8 macro.

Others will be along with more detailed answers soon, I'm sure.

Meanwhile, do check the image archive threads for these lenses. They are in a separate sub-forum and there should be a link at the top of the page.

P.S.

Hmmm - not quite - -->here's<-- the link.
Yes Agree the 60mm macro is good but im looking for 1:1 Magnification and 60mm doesnt get that.
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Old 10th of February 2009 (Tue)   #12
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Default Re: Canon 100mm macro F2.8 or Sigma 105mm F2.8 macro

Thanks all,
these are all very good points and have helped quite alot.
the sigma seems to be the one as im not worried about Re-sell value.
But you never know i might get lucky and be able to afford my own Canon 100mm.
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Old 10th of February 2009 (Tue)   #13
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Default Re: Canon 100mm macro F2.8 or Sigma 105mm F2.8 macro

Quote:
Originally Posted by Randy McBum. View Post
Yes Agree the 60mm macro is good but im looking for 1:1 Magnification and 60mm doesnt get that.
Yes it does.
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Old 10th of February 2009 (Tue)   #14
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Default Re: Canon 100mm macro F2.8 or Sigma 105mm F2.8 macro

for canon the best is the 100mm macro
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Old 10th of February 2009 (Tue)   #15
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Default Re: Canon 100mm macro F2.8 or Sigma 105mm F2.8 macro

It will take me forever to list the good things about the canon 100mm 2.8
I use it for many applications, if you are on a crop sensor it becomes a good medium telephoto lens and on a full frame it is a great overall prime lens for portraits to flowers.

I have had a few sigma lenses and I just don't like them as much, the focus isn't quite as fast and it's just not a canon. The one thing that makes sigma a really good choice is their lenses have a 4 year warranty.

Build and feel of the canon is better too
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